incUsage is not called when acquireConnection -> createConnection

[LYFKiririn]

incUsage is not called when acquireConnection -> createConnection
but decUsage is still called when releasrConnection, which lead usage to become -1
after this, PingConnectionHandler will behave incorrectly:

1. send ping when in usage (poll: -1 to 0)
2. not send ping when idle (release: 0 to -1)

Expected behavior
incUsage is called when acquireConnection

Actual behavior
incUsage is called when acquire exist free connection
incUsage is not called when acquire create new connection

Steps to reproduce or test case
freeConnections size < acquireConnection size
for example (pseudo-code):

1. setConnectionMinimumIdleSize(1)
2. setConnectionPoolSize(8)
3. Redisson.create(config)
4. Executor pool = Executors.newFixedThreadPool(8)
5. for (int i = 0; i < 8; i++) pool.execute(() -> redisson.getBucket("test").getAsync())

Redis version
6.2.6

Redisson version
3.17.4

Redisson configuration
connectionMinimumIdleSize: 1
connectionPoolSize: 8
pingConnectionInterval: 5000
idleConnectionTimeout: 10000

【acquire exist free connection】【release correctly：0 to 1 to 0】

【acquire create new connection】【release incorrectly：0 to -1】

【PingConnectionHandler behavior】

[mrniko]

Fixed. Thanks for report

[LYFKiririn]

@mrniko

You fixed the message connection but neglected the pubsub connection.
PubSubConnectionPool overrides poll and releaseConnection, which will not call incUsage and decUsage.

When acquire create new pubsub connection, incUsage in ConnectionPool without checking PubSubConnectionPool will lead usage to become 1.
Connection pinging will also work incorrectly in this case.

【PubSubConnectionPool】

【pollConnection】

【releaseConnection】

【pollSubscribeConnection】

【releaseSubscribeConnection】

[mrniko]

@LYFKiririn

Fixed. Thanks for code review.